11649995 has 16 divisors (see below), whose sum is σ = 16305600. Its totient is φ = 7987392.

The previous prime is 11649977. The next prime is 11650003. The reversal of 11649995 is 59994611.

It is not a de Polignac number, because 11649995 - 2¹² = 11645899 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1682 + ... + 5111.

It is an arithmetic number, because the mean of its divisors is an integer number (1019100).

Almost surely, 2^11649995 is an apocalyptic number.

11649995 is a deficient number, since it is larger than the sum of its proper divisors (4655605).

11649995 is an frugal number, since it uses more digits than its factorization.

11649995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6819 (or 6805 counting only the distinct ones).

The product of its digits is 87480, while the sum is 44.

The square root of 11649995 is about 3413.2089007267. The cubic root of 11649995 is about 226.6949851682.

The spelling of 11649995 in words is "eleven million, six hundred forty-nine thousand, nine hundred ninety-five".